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Certificate Anomaly

High Investigating
ALR-00401 · 2026-05-23T08:47:53Z

Description

TLS certificate anomaly detected on WS-LAP-010. Self-signed certificate on port 443 does not match expected corporate CA chain.

Alert Metadata

Alert ID
ALR-00401
Timestamp
2026-05-23T08:47:53Z
Severity
High
Status
Investigating
Detection Source
Attack Surface Scanner
Assigned Analyst
Emma Richardson

Endpoint Information

Hostname
WS-LAP-010
User Account
s.jones
Source IP
45.3.148.91
Destination IP
10.2.238.170
Origin Country
KP North Korea

MITRE ATT&CK Mapping

Tactic
Defence Evasion
Technique
T1553.004
Reference
attack.mitre.org/techniques/T1553.004

Investigation Timeline

08:47:53 Event ingested by SOC365 Engine
08:47:55 EmilyAI triage started — correlation enrichment
08:47:59 EmilyAI confidence: 98% — escalated to human analyst
08:48:28 Alert assigned to analyst: Emma Richardson
08:48:57 Investigation started — querying SIEM and threat intelligence

Related Alerts

ID Time Alert Severity Status Host
ALR-00016 1h ago Lateral Movement Detected Medium Escalated WS-LAP-010
ALR-00161 2h ago Data Exfiltration Attempt High Open WS-LAP-010
ALR-00433 3h ago Pass-the-Hash Detected Medium Investigating WS-LAP-010
ALR-00066 4h ago Certificate Anomaly Low Escalated SRV-BACKUP-01
ALR-00159 9h ago Certificate Anomaly High Open WS-LAP-011